Patent US2968997A successfully refreshed from Google Patents.
Patent US4225580A successfully refreshed from Google Patents.
Patent US3070503A successfully refreshed from Google Patents.
US3070503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrilamine resin absorbate with aspirin and/or ascorbic acid
Assignee: Merck and Co Inc
•
Filing: 1959-05-22
•
Granted: 1962-12-25
•
Expires: 1979-05-22
Abstract
No abstract record available.
Inventors
- 👤 Siegel Sheldon
- 👤 Russell H Pettebone
- 👤 Edward J Hanus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:42
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/74; A61K31/795; A61K31/60; A61K47/00; A61K47/50; A61K47/51; A61K47/56; A61K47/58; A61K47/585
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A PREPARATION CONTAINING AT LEAST ONE INGREDIENT SELECTED FROM THE GROUP CONSISTING OF ASPIRIN AND ASCORBIC ACID AND A PHARMACEUTICALLY ACCEPTABLE SYNTHETIC CATION EXCHANGE RESIN HAVING ADSORBED THEREON PYRILAMINE.
Claim 2
Dependent Claim
29 words
A PREPARATION CONTAINING AT LEAST ONE INGREDIENT SELECTED FROM THE GROUP CONSISTING OF ASPIRIN AND ASCORBIC ACID AND A PHARMACEUTICALLY ACCEPTABLE SYNTHETIC CATION EXCHANGE RESIN HAVING ADSORBED THEREON PYRILAMINE.
References Cited (Backward Citations)
US2838440A
Cited
US2803933A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |